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[Towertalk] mast strength

To: <towertalk@contesting.com>
Subject: [Towertalk] mast strength
From: shr@ricc.net (W0UN--John Brosnahan)
Date: Tue, 24 Dec 2002 13:55:38 -0600
At 01:18 PM 12/24/2002 -0600, Paul DeWitte K9OT wrote:


>Since schedule 80 is twice as thich as schedule 40 they are not the same
>strength.

Yield strength is a materials spec.  Both Schedule 80 and 40 are the
same material--so their material yield strength is the same.  But the
actual load they can handle is a function not only of the material yield
strength but also the wall thickness and diameter.  You need all three
to calculate the capabilty of a mast. 


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